Question

Match the following:

List - I	List - II
A. Data link layer	I. Encryption
B. Network layer	II. Connection control
C. Transport layer	III. Routing
D. Presentation layer	IV. Framing

1. A - IV, B - III, C - I, D - II
2. A - III, B - IV, C - II, D - I
3. A - IV, B - II, C - III, D - I
4. A - IV, B - III, C - II, D - I

Answer 1

Correct Answer - Option 4 : A - IV, B - III, C - II, D - I

The correct answer is option 4.

• Data link-layer work is to do framing
• Network layer work is host to host connection, logical address, switching, routing, congestion control, fragmentation, so routing takes place in the network layer
• Transport layer. responsibilities are end to end connectivity,flow control,error control,segmentation,multiplex,demultiplex,connection control.
• Presentation layer monitors character translation ,encryption ,decryption,compression, expansion etc

Therefore option 4 is correct.